<template>
  <div class="login">
    <img
      src="@/assets/img/login/loginImg.png"
      class="loginImg"
    />
    <div style="display: flex;">

      <div style=" width: 675px;height: 514px;overflow: hidden; margin: 94px 15px 0 38px;">
        <img
          src="@/assets/img/login/backgroundImg1.png"
          class="rightImg"
        />
      </div>

      <div class="leftForm">
        <div class="denglu">太重融资租赁平台-工厂</div>
        <el-form
          ref="loginForm"
          :model="loginForm"
          :rules="loginRules"
          class="login-form"
        >
          <el-form-item prop="username">
            <el-input
              v-model="loginForm.username"
              type="text"
              auto-complete="off"
              placeholder="账号"
            >
              <svg-icon
                slot="prefix"
                icon-class="user"
                class="el-input__icon input-icon"
              />
            </el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input
              v-model="loginForm.password"
              type="text"
              class="no-autofill-pwd"
              auto-complete="off"
              placeholder="密码"
              @keyup.enter.native="handleLogin"
            >
              <svg-icon
                slot="prefix"
                icon-class="password"
                class="el-input__icon input-icon"
              />
            </el-input>
          </el-form-item>
          <el-form-item
            prop="code"
            v-if="captchaEnabled"
          >
            <el-input
              v-model="loginForm.code"
              auto-complete="off"
              placeholder="验证码"
              style="width: 63%"
              @keyup.enter.native="handleLogin"
            >
              <svg-icon
                slot="prefix"
                icon-class="validCode"
                class="el-input__icon input-icon"
              />
            </el-input>
            <div class="login-code">
              <img
                :src="codeUrl"
                @click="getCode"
                class="login-code-img"
              />
            </div>
          </el-form-item>
          <el-checkbox
            v-model="loginForm.rememberMe"
            style="margin:0px 0px 50px 0px;"
          >记住密码</el-checkbox>
          <el-form-item style="width:100%;">
            <el-button
              :loading="loading"
              size="medium"
              type="primary"
              style="width:100%;"
              @click.native.prevent="handleLogin"
            >
              <span v-if="!loading">登 录</span>
              <span v-else>登 录 中...</span>
            </el-button>
            <div
              style="float: right;color:'#005897'"
              v-if="register"
            >
              <router-link
                class="link-type"
                :to="'/register'"
              >立即注册</router-link>
            </div>
          </el-form-item>
        </el-form>
      </div>
    </div>
  </div>
</template>

<script>
import { getCodeImg } from '@/api/login'
import Cookies from 'js-cookie'
import { encrypt, decrypt } from '@/utils/jsencrypt'

export default {
  name: 'Login',
  data() {
    return {
      codeUrl: '',
      loginForm: {
        username: '',
        password: '',
        rememberMe: false,
        code: '',
        uuid: ''
      },
      loginRules: {
        username: [
          { required: true, trigger: 'blur', message: '请输入您的账号' }
        ],
        password: [
          { required: true, trigger: 'blur', message: '请输入您的密码' }
        ],
        code: [{ required: true, trigger: 'change', message: '请输入验证码' }]
      },
      loading: false,
      // 验证码开关
      captchaEnabled: true,
      // 注册开关
      register: false,
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  created() {
    this.getCode()
    this.getCookie()
  },
  methods: {
    getCode() {
      getCodeImg().then(res => {
        this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled
        if (this.captchaEnabled) {
          this.codeUrl = 'data:image/gif;base64,' + res.img
          this.loginForm.uuid = res.uuid
        }
      })
    },
    getCookie() {
      const username = Cookies.get('username')
      const password = Cookies.get('password')
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      }
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          if (this.loginForm.rememberMe) {
            Cookies.set('username', this.loginForm.username, { expires: 30 })
            Cookies.set('password', encrypt(this.loginForm.password), { expires: 30 })
            Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 })
          } else {
            Cookies.remove('username')
            Cookies.remove('password')
            Cookies.remove('rememberMe')
          }
          this.$store.dispatch('Login', this.loginForm).then(() => {
            this.$router.push({ path: this.redirect || '/' }).catch(() => {
            })
          }).catch(() => {
            this.loading = false
            if (this.captchaEnabled) {
              this.getCode()
            }
          })
        }
      })
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  background: #fff url(~@/assets/img/login/background1.png) no-repeat 50%;
  background-size: 100% 100%;
}

.loginImg {
  width: 428px;
  height: 85px;
  position: absolute;
  top: 20px;
  left: 20px;
}

.rightImg {
  width: 100%;
  height: 100%;
}

.leftForm {
  margin-left: 100px;
  .denglu {
    font-size: 36px;
    color: #333333;
    margin: 170px 0 38px 0;
  }
}

.login-form {
  width: 445px;

  .el-input {
    height: 48px;

    input {
      height: 48px;
    }
  }

  .el-input--prefix .el-input__inner {
    padding-left: 42px;
  }

  .input-icon {
    height: 48px;
    width: 16px;
    margin-left: 11px;
  }
}

.el-button--primary {
  background: #005897;
  border-color: #005897;
  color: #ffffff;
}

.el-button--primary:hover,
.el-button--primary:focus {
  background: #005897;
  border-color: #005897;
  color: #ffffff;
}

.el-checkbox__input.is-checked + .el-checkbox__label {
  color: #005897;
}

.el-checkbox__input.is-checked .el-checkbox__inner {
  background-color: #005897;
  border-color: #005897;
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  height: 38px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}

.login-code-img {
  height: 38px;
}
</style>
